<!DOCTYPE html>
<html lang="en">
<head>
      <meta charset="UTF-8">
      <meta http-equiv="X-UA-Compatible" content="IE=edge">
      <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <title>Document</title>
</head>
<body>
      <form action="http://127.0.0.1:3000/login" method="POST">
            用户名： <input type="text" name="username"><br/>
            用户名： <input type="text" name="password"><br/>
            <button>
                  登录
            </button>
      </form>
</body>
</html>